Frequently asked questions about the MPCDF DataShare service.
Can you increase my quota?
Generally yes. Just open a ticket in our helpdesk shortly stating how much storage you need and what you intend to use it for.
Please note though that the DataShare service is not intended as a replacement for network shares or AFS, but rather for data you want to share with other people. You should store a few thousand files in it at most, beyond that you will experience performance issues during sync.
I deleted a file by mistake, what now?
Deleted files are kept in the ownCloud trashbin - from where you can restore them yourself - for up to 180 days. However, once the trashbin takes up more than 50% of your quota, old files will be deleted earlier to make sure there is enough space available for new data.
Your data is also backed up to tape daily. So even if a file was deleted from the trashbin it may be possible to recover it if it was stored in the DataShare for at least a day. In this case, you may open a ticket in our helpdesk, but please be aware since this takes manual invervention it may take a few days for your request to be processed.
I can’t upload big files
The maximum size of files that can be uploaded through the web interface or thirdparty WebDAV clients is 20 GB. Some clients may only support 2GB or less. Bigger files must be chunked into smaller parts on upload.
For transferring individual big files by hand or in a script, there is a Python client pyocclient available.
I can’t open zip files downloaded through the web interface
In the web interface, you can select multiple files or directories at once and then download them as a ZIP archive. Some older ZIP programs can’t open these files. Note that this only applies to ZIP files generated on the fly by selecting multiple objects in the web interface, not objects that were already uploaded in ZIP format.
I am an external user and can’t upload files
External accounts (you log in with you e-mail address) are meant for collaboration with MPCDF users only. As such, they dont’t have any quota of their own. Ask the person who invited you to share a folder with you and give you write permissions on it. You will then be able to upload data there which will be counted towards the quota of the inviter.
I get an error when trying to sync a folder in afs
Syncing folders with AFS is currently not supported and will most likely not work.